the skill of examining evidence and following clues to discover valuable secrets
With the Investigation Crew Skill, you will have the ability to gather Researched Compounds used in the Armstech Crew Skill for making weapons. This Crew Skill can also sometimes produce Schematics (recipes) for other Crew Skills which can be traded to other characters or sold at the Galactic Trade Network (auction house). The other unique ability with the Investigation Crew Skill is that you can uncover completely new Missions whilst on a mission, which can provide materials for other Crew Skills, item enhancements, item modifications and/or rare gear. Again, these can be traded or sold at the Galactic Trade Network. Through the Investigation Crew Skill, you can also gain Rsearched Compounds, Prototype Schematics and Companion Gifts.
Mission Crew Skills can only be completed by your Companions, eventually when you reach higher levels, you will be able to complete 3 missions by 3 companions at once. You can also send your companions out to complete missions while you're logged off as well.
To read the Investigation Leveling Guide, please click here.
If you are still leveling your character or you just started a new alt, I recommend you use a leveling guide. You can level your character using the most accurate and up to date Guide available by using the AeonGuide which is a library of professional written guides for SWTOR. Click here to get the AeonGuide.
